Sumitomo 19P7BPU Turning Insert TCMT32.52ESU AC8025P Carbide

Product Description

The SUMITOMO 19P7BPU is a solid carbide turning insert designed for precision metal cutting on CNC lathes and turning centers. It carries the ANSI designation TCMT32.52ESU and ISO code TCMT16T308N-SU, and is manufactured to grade AC8025P with a CVD coating process. The triangular insert geometry features a 60-degree included angle, a 7-degree relief angle, and a positive rake configuration. The ESU chip breaker geometry is suited for general-purpose turning on steel workpieces. This insert is installed and indexed by licensed machinists and CNC operators in production and job-shop environments.

This insert is intended for turning operations on steel workpieces, classified under primary workpiece material code P. The TCMT style, neutral hand, and screw-holding method make it compatible with standard TCMT-style toolholders used in both roughing and finishing passes. The 3/8-inch inscribed circle and 0.0313-inch corner radius support consistent chip control and surface finish across a range of depths of cut and feed rates. Typical applications include external turning on low-alloy and carbon steels in both light and moderate stock-removal scenarios.

Key Features

• AC8025P grade CVD-coated solid carbide construction for extended tool life on steel
• ESU chip breaker geometry for controlled chip evacuation during turning operations
• Positive rake design reduces cutting forces and heat generation at the cutting edge
• Screw-held TCMT insert style for secure, repeatable indexing in compatible toolholders
• Neutral hand orientation allows use in both right-hand and left-hand toolholder setups
• Meets ANSI and ISO 13399 standards for dimensional interchangeability

Compatibility

Designed for use in standard TCMT-style screw-clamp toolholders. Compatible with toolholder seats dimensioned for a 3/8-inch inscribed circle triangular insert with a 0.1693-inch hole diameter. Confirm toolholder clearance and chip breaker pocket geometry before indexing.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Always bring the spindle to a full stop and engage the machine lockout before indexing or replacing inserts. Use the appropriate torx or hex key to tighten the clamping screw to the toolholder manufacturer's specification. Inspect the insert pocket and seating surface for chips or debris before seating a new or indexed insert to ensure proper contact and runout.